Is Hydraulic Hose Rated For Diesel Fuel?

Not that diesel can’t be used, but the gauges occasionally leak, and diesel produces a stinky mess under the dash to clean up. Hydraulic hose will suffice, and the size should not be an issue as long as it is not excessively large.

What are diesel fuel lines made of?

Fuel lines are built of a variety of materials, each with its own set of advantages and disadvantages. The majority of fuel lines are reinforced rubber. Fuel lines should be made of this material since it prevents kinking and cracking. Make sure you choose a fuel line that can handle both vapor and liquid fuel. Stainless steel, plastic, steel coated with zinc, and nylon are some of the other materials used in gasoline lines. It is critical to read several reviews and learn how a specific fuel line performed for other users before making a purchase.

Q. What Is The Best Material For Fuel Lines?

The ideal gasoline line material is determined by your requirements. Polytetrafluoroethylene, or PTFE, is the ideal material for gasoline lines. Teflon is a type of plastic that is used to make PTFE fuel lines. This gasoline line material is resilient to degenerative fuel effects that might cause vapor barriers to form. It does, however, have drawbacks, just like everything else. Because it is inelastic, it is prone to kinking. However, if you use a proper bending tool while producing bends and curves, you can avoid this.

Q. Can I Replace Metal Fuel Lines With Rubber?

If your metal gasoline lines have rusted and begun to leak, you should repair them immediately to minimize further damage. Yes, rubber fuel lines can be used in place of metal gasoline lines. Some individuals prefer to repair only the rusty portion of the gasoline line, however it is more prudent to replace the entire fuel line. Rubber materials in fuel lines are strengthened and can withstand high pressure from current injection systems. Rubber gasoline lines are also quite sturdy and will last a long period.

Q. Can Fuel Line Be Submerged In Fuel?

The sort of gasoline line you wish to submerge in petrol will determine how long it takes. Fuel lines can be submersible or non-submersible. Even when buried in fuel, submersible fuel lines can survive. Non-submersible gasoline lines, on the other hand, are only meant to be used from the inside. As a result, depending on how and where you intend to use the fuel line, always check whether it is submersible or non-submersible before purchasing it.

Q. Can Vinyl Tubing Be Used For Fuel Line?

Vinyl tubing isn’t the ideal fuel line material unless it’s specifically designed for it. Gasoline, ethanol, and other hydrocarbons should not be transported in plain vinyl tubing. After some time, this tubing turns yellow. After conveying fuel, vinyl tubing becomes rigid and brittle. Only use Vinyl Tubing for fuel lines that are specifically designed for the job.

Q. Can Copper Be Used For Fuel Lines?

Another fuel line material available on the market is copper. It is one of the most appealing materials for fuel lines. It establishes a long-term gasoline or oil pipe and connection. As a result, copper fuel lines are acceptable. However, because new copper gasoline lines are easier to install than old tubing, it is recommended to utilize them instead of old tubing. If you’re working with old copper tubing, heat it to soften it and make it easier to bend. Some copper gasoline lines can be bent nicely with time and patience, but you’ll require bending equipment in your mechanic toolbox if this isn’t the case.

Q. Can You Replace Steel Fuel Lines With Nylon?

Yes, nylon fuel lines can be used in place of steel fuel lines. Many people prefer nylon gasoline lines because they are more cost-effective. They’re also quite adaptable and simple to set up. Even without bending tools, some nylon fuel line materials may generate elegant bends and curves. These fuel lines are available in various lengths and can be used to replace a single segment or the full fuel line.

Will silicone hose hold up to diesel fuel?

Can your silicone hoses be used for fuel? This is a question we are asked a lot. The short answer is no; typical silicone hoses are porous and so unsuitable for use with oil or fuel. We do have a range of fluorolined silicone hoses that are made for the specific goal of keeping fuel and oil from penetrating the hose’s wall, but we would not recommend them for fuel lines or heavy fuel filling. It’s fine to use fuel and vapour on occasion, but we recommend using rubber if you’re going to be in continuous touch with it.

What is the best material for diesel fuel lines?

The fact that gasoline and diesel control samples in our aging and corrosion investigations never really age is something we’ve noticed at PS for a long time. Gum and discoloration are only produced when metal samples are included in the samples. Refinery stability treatments are one cause, but the fundamental difference is that copper and zinc ions are powerful polymerization catalysts. Because copper tubing, brass fittings, and galvanized piping are prohibited by code, this type of failure does not occur in shore-side fuel storage systems. The following requirements have been cited by standards organizations and OEMs.

ASTM D975 Appendix X2.7.2

Copper and copper-based alloys should be avoided at all costs. Copper can cause mercaptide gels and increase fuel deterioration. Zinc coatings can create gels when exposed to water or organic acids, clogging filters quickly.

British Petroleum

Copper and zinc exposure, ahead of water and soil, are the most detrimental variables in long-term storage, according to British Petroleum. BP claims that:

  • There is water present. Fungus and bacteria thrive in water, producing natural by-products such as organic acids, which make the fuel unstable.
  • Dust and grime can contain trace elements like copper and zinc, which can destabilize the fuel.

We looked at diesel standby generator installation requirements. The gasoline will sit there for months, just like boats that are stored seasonally. We discovered that copper tubing and brass fittings were universally condemned:


Diesel fuel lines are best served by black iron pipe. Valve and fittings made of steel or cast iron are chosen.

CAUTION: Copper and zinc should not be utilized with diesel fuels, either as plating or as a substantial alloying component. In the presence of sulfur, zinc becomes unstable, especially if moisture is present in the fuel. Chemical action produces a sludge that is particularly detrimental to the engine’s interior components.


Piping for Diesel Fuel. Black iron pipe should be used to make diesel fuel lines. Because cast iron and aluminum pipe and fittings are porous and can leak gasoline, they should not be utilized. Galvanized gasoline lines, fittings, and tanks must not be utilized because the galvanized coating will be attacked by the sulfuric acid formed when the sulfur in the fuel reacts with the condensate in the tank, resulting in debris that can clog fuel pumps and filters.

Copper lines should not be used because fuel polymerizes (thickens) in copper tubing after extended periods of inactivity, clogging fuel injectors. Copper lines are also less durable than black iron, making them more vulnerable to damage.

Use galvanized or copper gasoline lines, fittings, or tanks at all times. Sulfuric acid is formed when condensation in the tank and lines reacts with the sulfur in the diesel fuel. The copper or galvanized lines or tanks’ molecular structure reacts with the acid, contaminating the fuel.

US Army CERDEC study, 1977

In the past, major field concerns have resulted from galvanized storage tanks, pipes, and terne-coated vehicle tanks. Zinc has a tendency to build up in spray holes, causing nozzle coking. Fuel acids attack lead (a component of terne plating) and cause soap precipitates. Copper has the potential to catalyze the oxidation of fuels and induce solids deposition. Nonferrous metals and alloys should be avoided in fuel pipes and storage tanks, as well as throughout the complete vehicle fuel system.

When exposed to biodiesel or bugs, ni-terne, which is used to cover the inside of the tank, can peel.

US Department of energy

Certain metals may have an effect on biodiesel by speeding up the oxidation process and resulting in the formation of fuel insolubles. In both B100 and B20, lead, tin, brass, bronze, and zinc considerably increase sediment formation. At any blend level, galvanized metal and terne-coated sheet metal are incompatible with biodiesel.


Should we replace copper and brass with flexible hose, steel, and aluminum in the fuel system? Let’s not rush into things. Metal deactivators in PS suggested additions sequester the problematic ions, rendering them harmless. You are safe if you follow a regular therapy schedule. However, while installing new equipment, think about the materials you use.

What is the best fuel hose to use?

The conscientious car constructor has various options, some of which are less expensive than others. The optimum option is PTFE (polytetrafluoroethylene). That stands for polytetrafluoroethylene, a type of plastic better known as Teflon in one form or another. This substance is resistant to the degenerative effects of gasoline and also acts as a vapor barrier, preventing fuel vapors from escaping. One issue with PTFE hoses is that they are prone to kinking due to the inelastic nature of the plastic.

What kind of hose is fuel safe?

When abrasion resistance is required, PTFE hose is the way to go. A black PVC cover or a stainless steel cover is offered. The inside liner is PTFE, while the stainless steel outside is 308 stainless steel braid (if you pick that option). This pipe is suitable for nitromethane and alcohol fuel systems.

Can I use rubber hose for fuel lines?

In fuel applications, standard rubber vacuum or heater hose should never be utilized. Long before it springs an external leak, the hose will deteriorate from the inside out, clogging gasoline filters and carburetors with rubber debris.

Will hydraulic hose work for antifreeze?

Low-pressure hydraulic hoses can sustain pressures of up to 300 pounds per square inch. The most common type of reinforcement is cloth. They transport petroleum-based fluids, diesel fuel, heated lubricating oil, air, glycol antifreeze, and water in low-pressure hydraulic applications. Global MegaVac (GMV), for example, is rated for suction applications.

Specialty hydraulic hoses don’t always fit neatly into a pressure category. Specialty hose, for example, could be used with ecologically friendly hydraulic fluids, for operating at extremely high or low temperatures, or for applications that need electrical nonconductivity. When weight is an issue or large continuous lengths are necessary, they might be provided. Nonmetallic reinforcement is typically a rubber-impregnated fabric.

Minimum requirements for construction, dimensions, and performance have long been established by SAE in North America to offer a measure of uniformity to hydraulic-hose manufacture.

Organizations such as the European Norm/Standard (EN), Deutsche Industrie Norm (DIN), and the International Standards Organization (ISO) set standards in other regions of the world that may differ from those set by SAE. Standards are also set by government agencies. The Mine Safety and Health Administration (MSHA) and the Federal Motor Vehicle Safety Standards of the Department of Transportation are two among them.

The 100R hose series, which are the most popular hoses used in hydraulic systems, are covered by SAE Standard J517, which includes general, dimensional, and performance specifications. For more information, see the “SAE hose structures” sidebar.

Exceeding SAE specifications

Some manufacturers have created hoses that considerably exceed SAE specifications in terms of performance and construction. Higher pressure and temperature capabilities, more flexibility, and a bend radius as small as one-half that of the SAE standard are all advantages to consumers.

Gates M-XP hydraulic hose is one such product, as it combines the flexibility of wire-braid construction with the strength and performance of spiral-wire reinforcement. The result is a two-braid wire hose that can perform 4000-psi high-impulse duty in all sizes at a low cost.

The M-XP hose is rated for 1,000,000 impulse cycles (at 100°C), which is higher than the SAE norm of 200,000 and the Gates minimum requirement of 600,000 for conventional wire-braid hoses. The hose’s high cycle rating means it’ll last longer in out-of-sight and hard-to-reach applications like mobile and construction equipment’s boom arms and scissor lifts.

In addition, the hose has half the minimum bend radius of comparable SAE-rated tubing. This means it can withstand more extreme bends without sacrificing performance or life. This can cut the length of hose required by nearly half in some situations. It’s also easier to install in tight locations with more flexibility.

Another benefit is that M-XP hose can employ less expensive, one-piece MegaCrimp couplings that are likewise rated for 1,000,000 impulse test cycles instead of expensive spiral-wire couplings. MSHA flame-resistance standards are met by the assemblies.

The SAE J517 specifications are summarized here. Unless otherwise specified, each hose features an oil-resistant synthetic rubber inner tube that is compatible with both petroleum and water-based hydraulic fluids, an oil and weather-resistant synthetic rubber cover, and a temperature range of –40 to 100°C.

One braid of high-tensile-strength wire is wrapped around an oil-resistant tube (usually nitrile) and an oil, weather, UV, and ozone-resistant cover is usually constructed of NBR or NBR/PVC blend. Type AT is constructed similarly to Type A, with the exception that the cover does not need to be removed in order to assemble with fittings. Type S has the same structure as Type AT and operates at ISO 436-1, Type 1SN operating pressures.

Steel-wire reinforcement is found in two braids on SAE 100R2 hose. To anchor the rubber to the wire, a ply or braid of suitable material can be applied over the inner tube and/or wire reinforcement. To assemble with fittings, Type A needs skiving (removing) a part of the cover. Type AT is constructed similarly to Type A, with the exception that the cover does not need to be removed in order to assemble with fittings. Type S has the same construction as Type AT and operates at ISO 1436-1, Type 2SN operating pressures.

SAE 100R3 hose features two textile yarn strands. It’s typically utilized with petroleum lubricants, antifreeze, or water in low-pressure applications.

One or more plies of woven or braided textile fibers with a spiral of body wire make up SAE 100R4 hose. It’s commonly used for suction and return lines.

Two textile braids are separated by a high-tensile-strength steel-wire braid in SAE 100R5 hose. The braids are all treated with a synthetic rubber composition that is grease and mildew resistant.

One braided or spiral ply of textile yarn is included in SAE 100R6 hose. It’s for low-pressure, general-purpose applications.

At temperatures ranging from –40 to 93°C, SAE 100R7 thermoplastic hose should be utilized with synthetic, petroleum, and water-based hydraulic fluids. It comprises of a hydraulic fluid and weather-resistant thermoplastic inner tube reinforced with synthetic fibers and a hydraulic fluid and weather-resistant thermoplastic cover. An orange cover and proper layline distinguish nonconductive 100R7. The pressure capacity is comparable to 100R1.

Within a temperature range of –40 to 93°C, SAE 100R8 high-pressure thermoplastic hose should be utilized with synthetic, petroleum, and water-based hydraulic fluids. It has a hydraulic fluid and weather-resistant thermoplastic cover, as well as a thermoplastic inner tube that is resistant to hydraulic fluids. An orange cover and proper layline distinguish nonconductive 100R8. The pressure capacity is comparable to 100R2.

The hose types SAE 100R9, SAE 100R10, and SAE 100R11 have been delisted from the SAE standard.

Within a temperature range of –40 to 121°C, SAE 100R12 hose should be used with petroleum and water-based hydraulic fluids. It is made up of four spiral plies of strong wire coiled in different directions. To anchor the synthetic rubber to the wire, a ply or braid of suitable material can be applied over the inner tube and/or over the wire reinforcement.

The SAE 100R13 hose is designed to handle petroleum and water-based hydraulic fluids at temperatures ranging from –40 to 121°C. The inner tube is covered with many spiral plies of strong wire coiled in alternate directions. It’s designed for high-pressure situations that may experience surges or flexing.

SAE 100R14 hose is designed to work with petroleum, synthetic, and water-based hydraulic fluids at temperatures ranging from –54 to 204°C. Type A has a polytetrafluoroethylene (PTFE) inner tube reinforced with a single stainless steel braid. Type B is constructed similarly to Type A, but with the addition of an electrically conductive inner surface to prevent electrostatic charge buildup.

Only petroleum-based hydraulic fluids in the temperature range of –40 to 121°C should be used with SAE 100R15 hose. It’s made up of several spiral plies of strong wire coiled in different directions. To anchor the rubber to the wire, a ply or braid of suitable material might be employed over or within the inner tube and/or over the wire reinforcement.

Steel-wire reinforcing is present in one or both strands of SAE 100R16 hose. It’s designed for high-pressure hydraulic applications that necessitate tight bends and a lot of flexibility.

The constant operating pressure rating of SAE 100R17 hose with one or two braids of steel-wire reinforcement is 3,000 psi.

In the temperature range of –40 to 93°C, SAE 100R18 thermoplastic hose should be utilized for synthetic, petroleum, and water-based hydraulic fluids. It has a hydraulic fluid and weather-resistant thermoplastic cover, a thermoplastic inner tube that resists hydraulic fluids, synthetic-fiber reinforcement, and a hydraulic fluid and weather-resistant thermoplastic inner tube. An orange cover and proper layline distinguish nonconductive 100R18. All sizes have a working pressure rating of 3,000 psi.

All sizes of SAE 100R19 hose have a continuous operating pressure rating of 4000 psi. Steel-wire reinforcing is present in one or two strands. To anchor the rubber to the wire, a ply or braid of suitable material can be applied over the inner tube and/or wire reinforcement.